I am also having problems running the precompiled ChucK binary under OSX Lion. I don't see any output on the console, just above error when I execute the first (sine-wave generating) program of the tutorial.

It seems that something may be hardwired to a previous OSX audio architecture. Maybe some changes can be made to the makefile? Or is it possible to try to connect to a specific audio interface in the code?

I'm not holding out much hope of assistance here, but may as well document my progress (or lack of!).

I've been looking for a way to get chuck to pass user input back out as midi and I ran into this forum, which proved quite useful. I am also running MA on a 13" MBP (most recent) with Lion. I found a beta release of chuck and MA on the mailing list that got me audio support, at least so far. Here's the link:

I don't know if my midi issues are related to Lion or my audio/midi setup, but I am so far unable to open a midi port to send midi out. Just using the standard midiout example from the documentation (pdf, no midiout examples on the website).

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